Does anyone have any experience of working here? I found a few comments on their courses, but how about teaching there? Is the money enough to live comfortably in the area, accommodation, students (ratio of kids - adults), do they offer financial help with DELTA? Any info would be great!

You might have some interesting times, but the "Scissors Crisis" has hit Bulgarians very hard. Very little disposable income and this impacts on places like private language schools. EU accession was an economic disaster for the vast majority.